<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport"
    content="width=device-width, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, user-scalable=0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
</head>

<body>
  <h2>接口文档</h2>
  <button>测试</button>
  <p></p>
  <!-- 导入了 在线的js文件 -->
  <script src="https://cdn.jsdelivr.net/npm/axios/dist/axios.min.js"></script>

  <script>
    document.querySelector('button').onclick = () => {
      axios({
        url: `http://ajax-api.itheima.net/api/news`,
        method: 'get',
      }).then((res) => {
        console.log(res)
        document.querySelector('p').innerHTML = res.data.data.data
      })
    }
  </script>
</body>

</html>